Despite their seemingly round shape, hippos are incredibly agile in water. Adult males can weigh up to 3,500 kilograms (7,700 pounds).
As one of the heaviest snakes in the world, anacondas can reach lengths of over 20 feet and weigh up to 550 pounds. Their girth can be particularly impressive.
These large bovines, also known as African buffalo, can weigh up to 1,900 pounds, especially in the case of the larger males.
Gaur is the largest species of wild cattle and can be found in parts of Southeast Asia. They can weigh up to 2,200 pounds.
As the largest animal ever known to have existed, the blue whale can reach lengths of up to 98 feet and weigh over 200 tons.
The male elephant seal is the largest pinniped and can weigh up to 8,800 pounds, while the females can weigh around 1,800 to 2,000 pounds.
A subspecies of brown bear, Kodiak bears are native to the Kodiak Archipelago in Alaska. They are among the largest bears, with males weighing up to 1,500 pounds.
Elephants can weigh several tons, making them one of the heaviest land animals.
Also known as feral pigs, wild boars can have substantial body mass. The largest individuals can weigh up to 660 pounds.
The world's largest land predator, male polar bears can weigh up to 1,500 pounds. Their large size helps them adapt to the harsh Arctic environment.